Stacker.



J. LARSEN. STAGKER. APPLICATION FILED MAR. 20, 1912.

Patented Feb. 4, 1913.

UNITED STATES PATENT OFFICE.

JOHN LARSEN, 0F GOLDFIELD, IOWA.

STACKER.

To all whom it may concern:

Be it known that I, JOHN LARSEN, a citizen of the United States, residing at Goldfield, in the county of Wright and State of Iowa, have invented a new and useful Improvement in Stackers, of which the following is a specification.

My invent-ion relates to stackers of the overshot type, and has for its object a stacker of simple, durable and inexpensive construction.

A further object of my invention is to provide a stacker of this type having an overshot carrier so designed as to pass dead center when raised to its upward limit of movement, and means for automatically returning the carrier when in this position.

A further object of my invention is to provide a stacker of this type with means for preventing the carrier from striking the ground when being lowered to its position to be loaded.

The above and other features of novelty, advantages and capabilities of my invention will become apparent from a detailed description of the accompanying drawings, in which- Figure 1 is a view in perspective of a stacker embodying my invention, showing the carrier in an elevated position. Fig. 2 is a central longitudinal vertical sectional view of the same, showing the carrier returned to a position where the weight of the carrier will return it to its lower limit of movement to be loaded. Fig. 3 is a central longitudinal vertical sectional view of the same with a portion of the carrier broken away, showing the position of the parts, when the carrier is in its position to be loaded.

Referring to the accompanying drawings in detail, I have used the reference numeral 10 to designate the base members of the frame work, which members are secured together at either end by cross pieces 11. I have designated the front end of the base members by the numeral 12, and the rear ends by the numeral 13. The base members are provided with upright members 14 near the front end thereof, said upright members being rigidly secured to the base members by reinforcing members 15 and 16. .At the upper end of said upright members a pair of arms 17 are pivotally mounted to said uprights at one end, and are secured together at the opposite ends by a shaft 18,

Specification of Letters Patent.

Application filed March 20, 1912.

Patented Feb. 4,1913.

Serial N0. 685,128.

on which is rotatably mounted a roller 19. At the point a on said arms, a second pair of arms 20 are pivotally mounted at one end and at their opposite ends to the carrier, presently to be described.

Near the center of the front cross-brace of the base members, an arm 21 is secured by any suitable means so as to permit of an upward and downward movement. At the upper end of the arm 21, a lever 22 is pivotally mounted. Said arm being rotatably mounted on the shaft 18 at one end, and at its opposite end provided with a weight 18 and an opening to which is secured a draft rope or cable 23.

Near the center of, and at the lower edge of the front cross-brace, a pulley 24 is secured by any suitable means, through which pulley the draft rope 23 passes from the lever 22, thence upwardly over the roller 19, thence downwardly under a swivel pulley 26, thence outwardly to where the draft is attached.

The carrier comprises two side members 27 which are pivotallymounted to the base members near the rear end thereof, and are provided at their opposite or free ends with a pitcher-head comprising a pair of cross bracers 28, to which is secured a series of bars 29 and 30. The bars 30 being inclined away from the side members 27 and the bars 29 being inclined downwardly from the bars 80. That is to say the bars 29 are set at an obtuse angle to the side members 27, so as to further facilitate the dumping of the hay. For preventing the carrier from striking the ground when being lowered, and for holding the carrier from the ground when the carrier is being moved, I provide two arms 28 which are pivotally connected together at one end, the opposite end of one of said arms is rotatably connected to the shaft 18, and the opposite end of the other arm is secured by any suit-able means to the front cross-brace 11.

Assuming the parts are assembled as heretofore described, and it is desired to use my stacker, the carrier is placed in aposition as shown in Fig. 3, the draft is then attached to the rope, and when the draft is applied the rope pulls downwardly on the lever 22 and upwardly on the roller 19, and

the carrier is thus carried upwardly until it reaches the position shown in Fig. 2, in whichposition the load of the stacker will be dumped onto the stack. When the carrier reaches this position, the draft is released and the weight on the lever 22 pulls the lever downwardly, and by this operation the arms 20 are caused to pull the carrier backwardly and downwardly to a position where it will be carried downwardly by its own weight. My stacker could also be used without the weight, as all that would be necessary to throw the carrier back after it had reached its upward limit of movement would be a slight pull on the draft rope, thus pulling the shaft downwardly and by this operation the arms 20 pull the carrier backwardly and downwardly. It will also be noticed that by providing my stacker with the lever 22, that I can raise a load of considerable weight with a comparatively small power.

While I have herein shown and described only one embodiment of my invention, it is to be understood that various changes and modifications can be made by those skilled in the art without diverting from the scope of my invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a stacker of the class described, the combination of a frame, a carrier pivotally connected near one end of said frame, a pair of arms pivotally connected near the opposite end of said frame, a second pair of arms pivotally connected at one end to said first mentioned arms at a point spaced from the outer ends of said first mentioned arms, and at their opposite ends to said carrier. an arm pivotally connected to the forward end of said frame, a lever pivotally connected to the outer end of said arm at a point spaced apart from the ends of said lever, one end of said lever being connected to the outer ends of said first mentioned arms, and means connecting with the opposite end of said lever for raising and lowering said carrier.

2. In a stacker of the class described, the combination of a frame, a carrier pivot ally connected near one end of said frame, a pair of arms pivotally connected near the opposite end of said frame, a second pair of arms pivotally connect-ed at one end to said first mentioned arms at a point spaced from the outer ends of said first mentioned arms and at their opposite ends to said carrier, a second arm pivotally connected to the forwardend of said frame, a lever pivotally connected to the outer or free end of said arm at a point spaced apart from the ends of said lever, said lever being connected at one end to the outer ends of said first mentioned arms and provided with a weight at its opposite end and means connecting with the outer end of said lever for raising said carrier.

3. In a stacker of the class described, the combination of a frame, a carrier pivotally connected near one end of said frame, a pair of arms pivotally connected near the opposite end of said frame, a second pair of arms pivotally connected at one end to said first mentioned arms at a point spaced from the outer ends of said first mentioned arms and at their opposite ends to said carrier, an arm pivotally connected to the forward end of said frame, a lever pivotally connected at a point spaced apart from its ends to the outer or free end of said arm, and said lever being connected at one of its ends to the outer ends of said first mentioned arms and provided with a weight at its opposite end and means connecting with the outer end of said lever and with the outer ends of said first mentioned arms for raising said carrier.

4;. In a stacker of the class described, the combination of a frame, a carrier provided with a pitcher-head pivotally mounted near one end of said frame, a pair of arms secured to said frame near the opposite end, a second pair of arms secured to said first mentioned arms at one end and to said carrier at the opposite end, a shaft connecting the free ends of said first mentioned levers, means connecting with said shaft for raising said carrier, and means connected with said shaft for automatically returning the carrier after it has reached its upward limit of movement, said means comprising a weight connected with said shaft.

5. In a stacker of the class described, the combination of a frame, a carrier pivotally mounted near one end of said frame, a pair of arms secured to said frame near the opposite end, a second pair of arms secured to said first mentioned arms at one end, and to said carrier at the opposite end, a shaft connecting the free ends of said first mentioned arms, a lever rotatably mounted on said shaft at one end and provided with a weight at its opposite end, and means connecting with said last mentioned lever and shaft for raising said carrier.

In witness whereof, I hereunto subscribe my name this fifteenth day of March JOHN LARSEN. Witnesses T. R. BEVERIDGE, J. M. BENNETT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 

